Of course, Im not totally dumb

Im going to presume green is power mode, it certainly seems to drive a lot nicer in this setting than the center posistion. But what is the orange side? Is it meant to also have an economy mode which would seem pointless when it doesnt rev that high in the normal position anyway, is it meant to be 'hold' mode, is it meant to be like toyotas "2nd Start" mode which disables 1st gear?